Novel bolt mounting and dismounting device

Abstract

The utility model relates to a novel bolt mounting and dismounting device, and belongs to the technical field of gas turbine assembly. Comprising a plurality of formworks, a plurality of bearings are arranged on the formworks in the length direction, power gears, connecting gears or tightening gears can be installed on the bearings of the formworks, and the adjacent formworks are connected through connecting pieces. According to the utility model, the installation of bolts and nuts in a narrow space is realized, the bolt installation efficiency in a narrow space or a hidden position is improved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The utility model relates to a novel bolt installation and removal device, belonging to the technical field of gas turbine assembly. Background Art

[0002] Some parts on the gas turbine have compact structures or, in order to ensure the sealing effect, some bolts and nuts are located in a small space and hidden position, which makes the installation and disassembly of bolts and nuts difficult. In actual production, workers need to manually install bolts and nuts. Since there are no quick installation tools, workers need to take a fixed posture for a long time during installation, which causes high labor intensity for workers. Existing tools cannot quickly install bolts in hidden positions or narrow spaces, making the assembly and disassembly efficiency of gas turbines low.

[0003] Chinese patent (CN216577679U) discloses a bolt removal tool, including a long strip housing and a cover plate, the housing and the cover plate cooperate to form an installation cavity; a first sprocket and a second sprocket are arranged in the installation cavity, a chain is meshed between the first sprocket and the second sprocket; a first rotating shaft is fixed on the first sprocket; a second rotating shaft is fixed on the second sprocket, the first rotating shaft and the second rotating shaft are respectively connected to the housing and the cover plate through bearings; a rotating rod is fixed on the end face of the first rotating shaft, a connecting head is fixed on the end face of the second rotating shaft, and a clamping wheel is also fixed in the middle of the second rotating shaft; a sliding groove is provided on the cover plate, a slider is slidably connected in the sliding groove, and a clamping rod is fixed on the slider; the clamping rod can limit the rotation of the clamping wheel. The utility model has the advantages of high efficiency and can be used for bolt removal and installation in a narrow space.

[0004] The problem with the above patent is that the above device can only realize the removal of bolts of one depth. When the bolt depths are different, devices of different sizes need to be set, which leads to increased production costs and poor adaptability of the device. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a novel bolt installation and disassembly device, to realize the installation of bolts and nuts in a narrow space, to improve the bolt installation efficiency in a narrow space or a hidden position, and to reduce the labor intensity of operators.

[0006] The utility model discloses a novel bolt installation and removal device, comprising a plurality of templates. A plurality of bearings are arranged on the templates along the length direction. Power gears, connecting gears or tightening gears can be installed on the bearings of the templates. Adjacent templates are connected by connecting pieces.

[0007] The quantity and arrangement of the templates can be combined according to installation requirements.

[0008] The connecting piece includes a first part, a second part and a third part, which are connected in sequence to form a U-shape. A first slot is provided on the side of the template away from the gear, and the first part and the third part of the connecting piece are respectively inserted into the first slots of adjacent templates.

[0009] A second slot is arranged at the center of the power gear, and the screw handle can be inserted into the second slot.

[0010] A second groove is arranged at the center of the tightening gear, and the shape of the second groove is adapted to the shape of the screwed nut.

[0011] The connecting gear includes external teeth and a connecting shaft, which are coaxially arranged. The external teeth and the connecting shaft are hollow inside. A button, a clamping ring, a spring, a pin and a positioning bead are arranged inside the external teeth and the connecting shaft. The spring is sleeved on the upper part of the outer periphery of the pin, a clamping platform is arranged inside the external teeth, the bottom of the spring abuts against the clamping platform, the button is fixedly connected to the top of the pin, the clamping ring is sleeved on the outer periphery of the button and clamped with the inside of the external teeth, a first groove is arranged in the middle of the pin along the length direction, the positioning bead is arranged through the connecting shaft wall and abuts against the pin, and a third groove is arranged in the bearing corresponding to the positioning bead.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model provides a plurality of templates, and installs the power gear, the connecting gear and the tightening gear on the templates through bearings, connects the tightening gear with the nut or bolt to be tightened, applies external force to the power gear, and drives the tightening gear to rotate through the transmission of force between the gears, thereby realizing the installation of the bolt and the nut.

[0014] (2) The connecting gear includes an outer tooth and a connecting shaft, which are coaxially arranged, and the outer tooth and the connecting shaft are hollow inside. A button, a clamping ring, a spring, a pin and a positioning bead are arranged inside the outer tooth and the connecting shaft. The spring is sleeved on the upper part of the outer periphery of the pin, and a clamping table is arranged inside the outer tooth. The bottom of the spring abuts against the clamping table. The button is fixedly connected to the top of the pin. The clamping ring is sleeved on the outer periphery of the button and abuts against the inner part of the outer tooth. A first groove is arranged in the middle of the pin along the length direction. The positioning bead penetrates the wall of the connecting shaft and abuts against the pin. Pressing the button moves the pin downward, and the spring is compressed. The positioning bead initially abuts against the bottom of the pin. When the pin moves downward, most of the positioning bead is placed inside the connecting shaft. Then the connecting shaft is inserted into the bearing. The button is released. The pin moves upward under the action of the spring and the positioning bead is ejected, so that the positioning bead is abutted against the bearing, which is convenient for installation and disassembly of the connecting gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the top view of the structure of Embodiment 1 of the utility model;

[0016] Figure 2This is a schematic diagram of the main structure in Embodiment 1 of the present utility model;

[0017] Figure 3 It is a schematic diagram of the top view structure of the template;

[0018] Figure 4 It is a schematic diagram of the structure of the connecting parts;

[0019] Figure 5 It is a schematic diagram of the internal structure of the connecting gear;

[0020] Figure 6 It is a schematic diagram of the top view of the structure of Embodiment 2 of the present utility model;

[0021] Figure 7 It is a schematic diagram of the top view of the structure of Embodiment 3 of the present utility model;

[0022] Figure 8 It is a schematic diagram of the top structure of Example 4 of the utility model.

[0023] In the figure: 1. template; 2. power gear; 3. connecting gear; 31. external tooth; 32. connecting shaft; 4. tightening gear; 5. second groove; 6. second slot; 7. connecting piece; 71. first part; 72. second part; 73. third part; 8. bearing; 9. spring; 10. pin; 11. button; 12. retaining ring; 13. first groove; 14. positioning bead. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with embodiments:

[0025] Example 1

[0026] like Figure 1 to Figure 5 As shown, a new bolt installation and disassembly device described in the utility model includes a plurality of templates 1, the number of which is two, and a plurality of bearings 8 are arranged on the templates 1 along the length direction, and the number of bearings 8 on each template 1 is two, and the bearings 8 are installed on the templates 1 by heat installation. A power gear 2 and a connecting gear 3 are installed on one of the templates 1, and the power gear 2 is installed in the bearing 8 by cold installation, and the power gear 2 and the connecting gear 3 are meshed with each other. A connecting gear 3 and a tightening gear 4 are installed on the other template 1, and the connecting gear 3 and the tightening gear 4 are meshed with each other. The two templates 1 are arranged in an L shape, wherein the two connecting gears 3 are meshed with each other, and the two templates 1 are connected by a connecting piece 7. A second slot 6 is arranged at the center of the power gear 2, and a screwing handle (not shown in the figure) can be inserted into the second slot 6, and the screwing handle can be an existing installation tool. A second groove 5 is arranged at the center of the tightening gear 4, and the shape of the second groove 5 is adapted to the shape of the nut to be screwed, such as Figure 1-Figure 3 shown.

[0027] The connecting member 7 includes a first portion 71, a second portion 72 and a third portion 73, which are connected in sequence to form a U-shape. Figure 4 As shown, a first slot is provided on a side of the template 1 away from the gear, and the first portion 71 and the third portion 73 of the connecting member 7 are respectively inserted into the first slots of the adjacent template 1 .

[0028] The connecting gear 3 includes an external tooth 31 and a connecting shaft 32. Figure 5 As shown, the outer teeth 31 and the connecting shaft 32 are coaxially arranged, and the outer teeth 31 and the connecting shaft 32 are hollow inside. A button 11, a clamping ring 12, a spring 9, a pin 10 and a positioning bead 14 are arranged inside the outer teeth 31 and the connecting shaft 32. The spring 9 is sleeved on the upper part of the outer periphery of the pin 10, a clamping platform is arranged inside the outer teeth 31, and the bottom of the spring 9 abuts against the clamping platform. The button 11 is fixedly connected to the top of the pin 10, the clamping ring 12 is sleeved on the outer periphery of the button 11 and clamped with the inside of the outer teeth 31, a first groove 13 is arranged in the middle of the pin 10 along the length direction, the positioning bead 14 is arranged through the wall of the connecting shaft 32 and abuts against the pin 10, and a third groove is arranged in the bearing 8 corresponding to the positioning bead 14.

[0029] Example 2

[0030] The difference between Example 2 and Example 1 is that a power gear 2 and a connecting gear 3 are installed on one template 1, and the power gear 2 and the connecting gear 3 are meshed with each other, and a connecting gear 3 and a tightening gear 4 are installed on the other template 1, and the connecting gear 3 and the tightening gear 4 are meshed with each other. The two templates 1 are arranged in a Z shape, and the two connecting gears 3 are meshed with each other. Figure 6 shown.

[0031] Example 3

[0032] The difference between Example 3 and Example 1 is that a power gear 2 and a connecting gear 3 are installed on one template 1, and the power gear 2 and the connecting gear 3 are meshed with each other, and a connecting gear 3 and a tightening gear 4 are installed on the other template 1, and the connecting gear 3 and the tightening gear 4 are meshed with each other. The two templates 1 are arranged in a straight line, and the two connecting gears 3 are meshed with each other. Figure 7 shown.

[0033] Example 4

[0034] The difference between Example 4 and Example 1 is that the number of the template 1 is one, the template 1 is mounted with a power gear 2 and a tightening gear 4, and the power gear 2 and the tightening gear 4 are meshed with each other. Figure 8 shown.

[0035] Working process: According to the installation requirements, select the appropriate number and arrangement shape of the template 1, install the power gear 2, the connecting gear 3 and the tightening gear 4 on the template 1 respectively, insert the screwing handle into the second slot 6 at the center of the power gear 2, engage the tightening gear 4 with the nut to be screwed, and turn the screwing handle to tighten the nut.

[0036] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A new type of bolt installation and removal device, characterized in that: The invention comprises a plurality of templates (1), a plurality of bearings (8) are arranged on the templates (1) along the length direction, a power gear (2), a connecting gear (3) or a tightening gear (4) can be installed on the bearings (8) of the templates (1), the power gear (2), the connecting gear (3) and the tightening gear (4) are meshed with each other, and adjacent templates (1) are connected by connecting pieces (7).

2. The new bolt installation and removal device according to claim 1 is characterized in that: The number and arrangement of the templates (1) can be combined according to installation requirements.

3. The new bolt installation and removal device according to claim 2 is characterized in that: The connecting member (7) comprises a first portion (71), a second portion (72) and a third portion (73); the first portion (71), the second portion (72) and the third portion (73) are connected in sequence to form a U-shape; a first slot is provided on a side of the template (1) away from the gear; the first portion (71) and the third portion (73) of the connecting member (7) are respectively inserted into the first slots of adjacent templates (1).

4. The new bolt installation and removal device according to claim 2 is characterized in that: A second slot (6) is provided at the center of the power gear (2), and the handle can be inserted into the second slot (6) by turning it.

5. The novel bolt installation and removal device according to claim 2 is characterized in that: A second groove (5) is arranged at the center of the tightening gear (4), and the shape of the second groove (5) is adapted to the shape of the nut to be screwed.

6. The novel bolt installation and removal device according to any one of claims 1 to 5, characterized in that: The connecting gear (3) comprises an outer tooth (31) and a connecting shaft (32). The outer tooth (31) and the connecting shaft (32) are coaxially arranged. The outer tooth (31) and the connecting shaft (32) are hollow inside. A button (11), a clamping ring (12), a spring (9), a pin shaft (10) and a positioning bead (14) are arranged inside the outer tooth (31) and the connecting shaft (32). The spring (9) is sleeved on the upper part of the outer periphery of the pin shaft (10). A clamping table is arranged inside the outer tooth (31). The bottom of the spring (9) abuts against the clamping table. The button (11) is fixedly connected to the top of the pin shaft (10). The clamping ring (12) is sleeved on the outer periphery of the button (11) and abuts against the inner part of the outer tooth (31). A first groove (13) is arranged in the middle part of the pin shaft (10) along the length direction. The positioning bead (14) penetrates the wall of the connecting shaft (32) and abuts against the pin shaft (10). A third groove is arranged in the bearing (8) corresponding to the positioning bead (14).

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